Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico
The Tacaná volcano in southern Mexico, is one of the most important areas for conservation in the Mesoamerican biodiversity hotspot. Yet, traditional floristic inventories in the area have been limited by access to remote zones along its 4000 m elevation gradient. To achieve an accurate view of vegetation structure and spatial dynamics, we sampled moss pollsters from elevation locations along theentire Tacaná elevation gradient. We observed a strong correlation between pollen spectra and elevation variations, reflecting general vegetation patterns. Main vegetation types along the elevation gradient included tropical rain forest (from 500 to 1500 m), with relative high abundance of Moraceae, Ficus, Alchornea, Fabaceae and Bombacaceae. Montane rain forests were distributed from 2000 to 2500 m, and pollen spectra were dominated by Alnus, Clethra, Cyathea, Quercus, Alchornea, Ilex and Bombacaceae. Temperate forests were located at elevations ranging from 2800 to 3000 m, in association with Pinus-Alnus forests. Pinus forests were recorded at highest elevations from 3000 to 4000 m. In addition, relative humidity was the main factor determining elevation distribution and vegetation change in the area. We argue that up-climbing warm winds favor the distribution of tropical taxa towards higher elevations, thus allowing landscape plant connectivity. Biogeographic and local/regional factors–likely volcanism activity- might govern temperature fluctuations and immediate and long-term effects of the climatic distribution on the associated flora and on biodiversity as a whole.
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Subjects: | Polen, Estructura de la vegetación, Conectividad funcional del paisaje, Conservación de la diversidad de las plantas, Palinología, Artfrosur, |
Online Access: | https://doi.org/10.1080/01916122.2022.2139001 |
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KOHA-OAI-ECOSUR:632922024-03-12T12:52:17ZPollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico Domínguez Vázquez, Gabriela autor 13575 Hidalgo Juárez, Geramael autor León Cortés, Jorge Leonel Doctor autor 7292 textengThe Tacaná volcano in southern Mexico, is one of the most important areas for conservation in the Mesoamerican biodiversity hotspot. Yet, traditional floristic inventories in the area have been limited by access to remote zones along its 4000 m elevation gradient. To achieve an accurate view of vegetation structure and spatial dynamics, we sampled moss pollsters from elevation locations along theentire Tacaná elevation gradient. We observed a strong correlation between pollen spectra and elevation variations, reflecting general vegetation patterns. Main vegetation types along the elevation gradient included tropical rain forest (from 500 to 1500 m), with relative high abundance of Moraceae, Ficus, Alchornea, Fabaceae and Bombacaceae. Montane rain forests were distributed from 2000 to 2500 m, and pollen spectra were dominated by Alnus, Clethra, Cyathea, Quercus, Alchornea, Ilex and Bombacaceae. Temperate forests were located at elevations ranging from 2800 to 3000 m, in association with Pinus-Alnus forests. Pinus forests were recorded at highest elevations from 3000 to 4000 m. In addition, relative humidity was the main factor determining elevation distribution and vegetation change in the area. We argue that up-climbing warm winds favor the distribution of tropical taxa towards higher elevations, thus allowing landscape plant connectivity. Biogeographic and local/regional factors–likely volcanism activity- might govern temperature fluctuations and immediate and long-term effects of the climatic distribution on the associated flora and on biodiversity as a whole.The Tacaná volcano in southern Mexico, is one of the most important areas for conservation in the Mesoamerican biodiversity hotspot. Yet, traditional floristic inventories in the area have been limited by access to remote zones along its 4000 m elevation gradient. To achieve an accurate view of vegetation structure and spatial dynamics, we sampled moss pollsters from elevation locations along theentire Tacaná elevation gradient. We observed a strong correlation between pollen spectra and elevation variations, reflecting general vegetation patterns. Main vegetation types along the elevation gradient included tropical rain forest (from 500 to 1500 m), with relative high abundance of Moraceae, Ficus, Alchornea, Fabaceae and Bombacaceae. Montane rain forests were distributed from 2000 to 2500 m, and pollen spectra were dominated by Alnus, Clethra, Cyathea, Quercus, Alchornea, Ilex and Bombacaceae. Temperate forests were located at elevations ranging from 2800 to 3000 m, in association with Pinus-Alnus forests. Pinus forests were recorded at highest elevations from 3000 to 4000 m. In addition, relative humidity was the main factor determining elevation distribution and vegetation change in the area. We argue that up-climbing warm winds favor the distribution of tropical taxa towards higher elevations, thus allowing landscape plant connectivity. Biogeographic and local/regional factors–likely volcanism activity- might govern temperature fluctuations and immediate and long-term effects of the climatic distribution on the associated flora and on biodiversity as a whole.PolenEstructura de la vegetaciónConectividad funcional del paisajeConservación de la diversidad de las plantasPalinologíaArtfrosurPalynologyhttps://doi.org/10.1080/01916122.2022.2139001Disponible para usuarios de ECOSUR con su clave de acceso |
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Polen Estructura de la vegetación Conectividad funcional del paisaje Conservación de la diversidad de las plantas Palinología Artfrosur Polen Estructura de la vegetación Conectividad funcional del paisaje Conservación de la diversidad de las plantas Palinología Artfrosur |
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Polen Estructura de la vegetación Conectividad funcional del paisaje Conservación de la diversidad de las plantas Palinología Artfrosur Polen Estructura de la vegetación Conectividad funcional del paisaje Conservación de la diversidad de las plantas Palinología Artfrosur Domínguez Vázquez, Gabriela autor 13575 Hidalgo Juárez, Geramael autor León Cortés, Jorge Leonel Doctor autor 7292 Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico |
description |
The Tacaná volcano in southern Mexico, is one of the most important areas for conservation in the Mesoamerican biodiversity hotspot. Yet, traditional floristic inventories in the area have been limited by access to remote zones along its 4000 m elevation gradient. To achieve an accurate view of vegetation structure and spatial dynamics, we sampled moss pollsters from elevation locations along theentire Tacaná elevation gradient. We observed a strong correlation between pollen spectra and elevation variations, reflecting general vegetation patterns. Main vegetation types along the elevation gradient included tropical rain forest (from 500 to 1500 m), with relative high abundance of Moraceae, Ficus, Alchornea, Fabaceae and Bombacaceae. Montane rain forests were distributed from 2000 to 2500 m, and pollen spectra were dominated by Alnus, Clethra, Cyathea, Quercus, Alchornea, Ilex and Bombacaceae. Temperate forests were located at elevations ranging from 2800 to 3000 m, in association with Pinus-Alnus forests. Pinus forests were recorded at highest elevations from 3000 to 4000 m. In addition, relative humidity was the main factor determining elevation distribution and vegetation change in the area. We argue that up-climbing warm winds favor the distribution of tropical taxa towards higher elevations, thus allowing landscape plant connectivity. Biogeographic and local/regional factors–likely volcanism activity- might govern temperature fluctuations and immediate and long-term effects of the climatic distribution on the associated flora and on biodiversity as a whole. |
format |
Texto |
topic_facet |
Polen Estructura de la vegetación Conectividad funcional del paisaje Conservación de la diversidad de las plantas Palinología Artfrosur |
author |
Domínguez Vázquez, Gabriela autor 13575 Hidalgo Juárez, Geramael autor León Cortés, Jorge Leonel Doctor autor 7292 |
author_facet |
Domínguez Vázquez, Gabriela autor 13575 Hidalgo Juárez, Geramael autor León Cortés, Jorge Leonel Doctor autor 7292 |
author_sort |
Domínguez Vázquez, Gabriela autor 13575 |
title |
Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico |
title_short |
Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico |
title_full |
Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico |
title_fullStr |
Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico |
title_full_unstemmed |
Pollen rain, vegetation and connectivity in the Tacaná Volcano, Southern Mexico |
title_sort |
pollen rain, vegetation and connectivity in the tacaná volcano, southern mexico |
url |
https://doi.org/10.1080/01916122.2022.2139001 |
work_keys_str_mv |
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1794792416053559296 |